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Finding the Fourth Proportional to 1,075.92, 1,612.28 and 527.48

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Solution

The fourth proportional to 1,075.92, 1,612.28 and 527.48 is: 790.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,075.92 : 1,612.28 = 527.48 : x
  2. Step 2: Convert to fraction form
    1,075.92/1,612.28 = 527.48/x
  3. Step 3: Cross multiply
    1,075.92x = 1,612.28 × 527.48
  4. Step 4: Simplify right side
    1,075.92x = 850,445.45
  5. Step 5: Solve for x
    x = 850,445.45/1,075.92
  6. Step 6: Final answer
    x = 790.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.